60. Read the following statements and find out correct one-
1) Century plant produces flowers only once in its life span of 10-30 years
2) Bamboo produces flowers only once in its life span of 50-100 years
3) Neelakuranji produces flowers once in its 10 years life span
4) The colour of the flowers of strobilanthus is blue

61. An angiospermic stamen has
1) Bilobed anther
2) Each life has 2 pollen sacs
3) Pollen sac is also called microsporangium
4) All